Is CVE-2020-35512 in the CISA KEV catalog?

No. CVE-2020-35512 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2020-35512?

CVE-2020-35512 has a CVSS v3 base score of 7.8 (HIGH).

What is the EPSS score for CVE-2020-35512?

CVE-2020-35512 has an EPSS score of 0.33% (25th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix CVE-2020-35512?

Upgrade dbus on debian 11 to 1.12.20-1 or later. Fixes are available for 3 affected products.

CVE & CISA-KEV Catalog

CVE-2020-35512

HIGH

7.8

CVSS v3

NVD

Description

A use-after-free flaw was found in D-Bus Development branch <= 1.13.16, dbus-1.12.x stable branch <= 1.12.18, and dbus-1.10.x and older branches <= 1.10.30 when a system has multiple usernames sharing the same UID. When a set of policy rules references these usernames, D-Bus may free some memory in the heap, which is still used by data structures necessary for the other usernames sharing the UID, possibly leading to a crash or other undefined behaviors

CWE-416Use After Free

How to fix

Remediation Available

dbusDebian

Fixed in:1.12.20-1CVE-2020-35512

dbusUbuntu

Fixed in:1.10.6-1ubuntu3.6+esm1USN-5244-1

Fixed in:1.12.2-1ubuntu1.3USN-5244-2

Fixed in:1.12.16-2ubuntu2.2USN-5244-2

libdbus-1-3Ubuntu

Fixed in:1.10.6-1ubuntu3.6+esm1USN-5244-1

Fixed in:1.12.2-1ubuntu1.3USN-5244-2

Fixed in:1.12.16-2ubuntu2.2USN-5244-2

Remediation is compiled from vendor and distribution security advisories. Always confirm against the linked source for your exact version and platform.

CVSS v3 Vector

Exploitability

Attack VectorLocal

Attack ComplexityLow

Privileges RequiredLow

User InteractionNone

ScopeUnchanged

Impact

ConfidentialityHigh

IntegrityHigh

AvailabilityHigh

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Exploit Intelligence

0.33%probability of exploitation in 30 days

25thpercentile

Low risk: more likely to be exploited than 25% of all known CVEs.

References

Third-Party Advisory1

bugs.gentoo.org

Other references3

Related Vulnerabilities

Other CWE-416 (Use After Free) vulnerabilities, ordered by exploit likelihood. View all

CVE	Severity	CVSS	EPSS	Exploited	Fix
CVE-2019-0708	Critical	9.8	100%	KEV + Ransom	-
CVE-2021-31166	Critical	9.8	100%	KEV	Fix
CVE-2015-5119	Critical	9.8	99%	KEV	-
CVE-2010-3962	High	8.1	97%	KEV	-
CVE-2015-0313	Critical	9.8	96%	KEV	Fix
CVE-2017-9798	High	7.5	95%	-	Fix

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This product uses NVD data but is not endorsed or certified by the NVD. EPSS scores courtesy of FIRST.org (https://www.first.org/epss). Source: CISA KEV Catalog. Data as of 2024-11-21.